CN102154606A - Method for increasing production efficiency of hot-dip tin or tin alloy plating on surface of copper band - Google Patents
Method for increasing production efficiency of hot-dip tin or tin alloy plating on surface of copper band Download PDFInfo
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- CN102154606A CN102154606A CN2011101192931A CN201110119293A CN102154606A CN 102154606 A CN102154606 A CN 102154606A CN 2011101192931 A CN2011101192931 A CN 2011101192931A CN 201110119293 A CN201110119293 A CN 201110119293A CN 102154606 A CN102154606 A CN 102154606A
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Abstract
The invention provides a method for increasing the production efficiency of hot-dip tin or tin alloy plating on the surface of a copper band, which is mainly used for producing a photovoltaic welding band. A technical scheme provided by the invention comprises the following steps of: (1) raising the dip plating temperature: raising the temperature from the current common 230-250 DEG C to 260-280 DEG C to shorten the reaction time of a plating solution and the copper band and increase the dip plating speed from current 2-4 meters/minute to 5-6 meters/minute; (2) adding 0.01-0.02 percent of trace rare earth into a tin (alloy) plating solution to enhance the high temperature oxidation resistance of the plating solution and ensure that the performance of a photovoltaic welding band product is not influenced after the dip plating temperature rises; and (3) appropriately increasing the moving travel of the photovoltaic welding band between the dip plating procedure and the winding procedure or appropriately increasing the air cooling intensity to ensure the cooling effect after dip plating and contribute to winding and packaging of the product. Compared with the prior art, the method for increasing the production efficiency of hot-dip tin or tin alloy plating on the surface of the copper band has the advantages that: on the premise of not increasing the production cost, not changing the product performance and the like, the production efficiency is greatly increased, and extremely good application prospect is achieved.
Description
Technical field
The present invention relates to a kind of method that improves copper strip surface hot dipped tinning or tin alloy production efficiency, be mainly used in the production photovoltaic welding belt, belong to the metal material processing field.
Technical background
Photovoltaic welding belt is a zinc-plated or tin alloy on copper strips, is mainly used in solar photovoltaic assembly, such as solar photovoltaic generation system, solar battery sheet etc.
Photovoltaic market analysis report according to the well-known up-to-date issue of the Solarbuzz of solar energy industry research institution in the whole world shows that the supply in photovoltaic market at present almost is difficult to the growth of the demand of catching up with.Solarbuzz analyzes these regional high developments and mainly comes from the powerful government's support and the increase of consumers demand.This report thinks that Germany leads global solar demand market, and is Italian simultaneously, and Czech and France are expected to continue to increase, and raise the price with U.S.'s subsidy policy in Japan in the recent period, make these two markets increase faster.American market sees through U.S.'s recovery and reinvestment bill (American Recovery and Reinvestment Act), comprises that multiple policies such as burden of taxation inducement, electricity price are bought back, short fund stimulate down, make the U.S. that the potentiality of market multiplication be arranged in 2010.In addition, its state of California public works project and tool is expedited the emergence of all about renewable energy resources bill and will be created more big market.Emerging regional aspect, the nations of China and India will be important production base at following 2 years.China is domestic to be had up to nearly 100 photovoltaic projects and up to the order volume of nearly 20GW, and India also will contribute the 4.8GW production capacity simultaneously.
With respect to 2010 that increase substantially, brainstrust carried out forecast analysis in 2011 to photovoltaic market, and main opinion is divided two kinds, is respectively " occurring bringing to a halt " and " maintenance high growth ".Europe photovoltaic industry association supports the former viewpoint, thinks that solar energy photovoltaic system world installed capacity in 2011 will tend towards stability, and maintains an equal level in 2010.And iSuppli mechanism supports latter's viewpoint, predicts that installed capacity in 2011 will increase substantially 42.2%.
China is very big to the market demand of photovoltaic welding belt.Because country will continue to support the new forms of energy industry energetically, so the domestic demand market of a few years from now on photovoltaic application will inevitably continue to enlarge, and predicts the Compound Annual Growth Rate about 60% of China 2011-2015 photovoltaic product consumption according to authoritative institution's research report.And also there is sizable breach in the supply in domestic photovoltaic market.
The at present domestic enterprise that is engaged in photovoltaic welding belt processing and sells is a lot, but it is of certain scale less than 50 families, mainly concentrate on Jiangsu, Guangdong, areas such as Hebei are such as Baoding Ying Li group, Fu Ke-Si Bang heliotechnics (granary) company limited, connection scape metallic substance (Huizhou) company limited, Nanjing brilliant connection photovoltaic Science and Technology Ltd., Qinhuangdao prosperous photovoltaic Electronics Co., Ltd., Baoding electricity valley cable promise new forms of energy Science and Technology Ltd., Qinhuangdao morning sun Solar Co., Ltd, Dongguan City connection brightness tin industry company limited, energy Electro-optical Technology, INC. (US) 62 Martin Road, Concord, Massachusetts 017 of Nantong Soviet Union, the Hua Guang of Shenzhen reaches enterprises such as Science and Technology Ltd..
The technological process of production of photovoltaic welding belt is: copper strips → zinc-plated → batch → pack is made in copper cash (raw material) → wire drawing → calendering.This technology to the copper substrate requirements is: standard oxygen free copper or T2 red copper, copper content 〉=99.95%, electric conductivity 〉=98%.
The product specification of photovoltaic welding belt mainly contains two kinds, the interconnector and the band that confluxes.The interconnector width is generally 0.6～2.5mm, and copper strips thickness is generally 0.05～0.25mm.The bandwidth of confluxing is generally 4.0～10.0mm, and copper strips thickness is generally 0.15～0.30mm.Be coated with tin layer single face thickness and be generally 0.01～0.03mm, the concrete size most cases of copper strips and tin coating is to carry out customized production by customer requirement.
According to the client and the market requirement, photovoltaic welding belt can carry out the packing of 3 kinds of forms after zinc-plated finishing, and is respectively I-shaped dish packing, deep bid packing and cuts packing.
The principal element that influences the photovoltaic welding belt quality product has two aspects, and the one, the level of processing of copper strips comprises the control etc. of mechanical properties such as reasonable disposition, unit elongation and hardness of precision control, annealing process and the roll speed of thickness and width; The 2nd, the immersion plating level of tin layer comprises speed control, gauge control, alloying constituent optimization etc.
At present the problem that exists in the photovoltaic welding belt production mainly be on copper strips when immersion tin or tin alloy efficient lower, be generally 2～4 meters/minute, 24 tin machines with domestic current production rate maximum are example, produce 0.2 * 1.6 interconnector product, and the output in 1 year is no more than 100 tons.
Summary of the invention
The objective of the invention is to overcome the deficiency of existing photovoltaic welding belt production technique, a kind of method that improves copper strip surface hot dipped tinning or tin alloy production efficiency is provided.
Technical scheme of the present invention is:
(1) improves the immersion plating temperature, be increased to 260～280 ℃ by present 230～250 ℃ of using always, thereby shorten the reaction times of plating bath and copper strips, present 2～4 meters/minute immersion plating speed can be increased to 5～6 meters/minute;
(2) in tin (alloy) plating bath, add 0.1～0.2 ‰ trace rare-earth, thereby improve the high temperature oxidation resistance of plating bath, guarantee that the photovoltaic welding belt product performance after the immersion plating temperature raises are not affected;
(3) increase the stroke that immersion plating moves to photovoltaic welding belt between the wire-drawing process or suitably improve air-cooled intensity in right amount, thereby guarantee the cooling performance after the immersion plating, be beneficial to the take-up and the packing of product.
The mentioned rare earth of the present invention is commercial mishmetal product, and its consumption seldom, and is little to product performance and production cost influence.
Compared with prior art, the method for raising copper strip surface hot dipped tinning provided by the invention or tin alloy production efficiency can significantly be enhanced productivity not increasing production cost, not changing under the prerequisites such as product performance, has fabulous application prospect.
Description of drawings
Accompanying drawing is the technical process of copper strip surface hot dipped tinning of the present invention or tin alloy and the method for enhancing productivity.
Embodiment:
Below in conjunction with embodiment essence of the present invention is described further.
Embodiment 1: produce the photovoltaic welding belt product of 0.2 * 1.6 specification, coating is the 60%Sn40%Pb alloy, and coating single face thickness requirement is 0.03mm.
1) on tin machine the immersion plating temperature is set at 260 ℃, immersion plating speed is made as 5 meters/minute;
2) in tin alloy plating solution, add 0.1 ‰ commercial mishmetals, stir plating bath with stainless steel bar and mix to the rare earth dissolving and with tin alloy;
3) spacing of tin machine and wire coiler is drawn back 20～30% again, to increase the stroke that immersion plating is moved to photovoltaic welding belt between the wire-drawing process;
4) produce according to the technical process of photovoltaic welding belt and get final product.
The photovoltaic welding belt outward appearance of producing through present method is even, bright, silvery white, can reach the product quality level of original technology.
Embodiment 2: produce the photovoltaic welding belt product of 0.16 * 2.0 specification, coating is Sn (1～3%) Ag alloy, and coating single face thickness requirement is 0.02mm.
1) on tin machine the immersion plating temperature is set at 270 ℃, immersion plating speed is made as 5.5 meters/minute;
2) in tin alloy plating solution, add 0.15 ‰ commercial mishmetal, stir plating bath with stainless steel bar and mix to the rare earth dissolving and with tin alloy;
3) spacing of tin machine and wire coiler is drawn back 30～40% again, to increase the stroke that immersion plating is moved to photovoltaic welding belt between the wire-drawing process;
4) produce according to the technical process of photovoltaic welding belt and get final product.
The photovoltaic welding belt outward appearance of producing through present method is even, bright, silvery white, can reach the product quality level of original technology.
Embodiment 3: produce the photovoltaic welding belt product of 0.15 * 1.8 specification, coating is the 59%Sn39%Pd2%Ag alloy, and coating single face thickness requirement is 0.01mm.
1) on tin machine the immersion plating temperature is set at 280 ℃, immersion plating speed is made as 6 meters/minute;
2) in tin alloy plating solution, add 0.2 ‰ commercial mishmetals, stir plating bath with stainless steel bar and mix to the rare earth dissolving and with tin alloy;
3) spacing of tin machine and wire coiler is drawn back 30～40% again, increasing the stroke that immersion plating is moved to photovoltaic welding belt between the wire-drawing process, and the air-cooled intensity of tin machine is transferred big by about 10%;
4) produce according to the technical process of photovoltaic welding belt and get final product.
The photovoltaic welding belt outward appearance of producing through present method is even, bright, silvery white, can reach the product quality level of original technology.
Claims (5)
1. method that improves copper strip surface hot dipped tinning or tin alloy production efficiency, one of technical scheme that it is characterized in that this method is: improve the immersion plating temperature, be increased to 260～280 ℃ by 230～250 ℃ that use always at present, thereby shorten the reaction times of plating bath and copper strips, the immersion plating speed of using 2～4 meters/minute at present always can be increased to 5～6 meters/minute.
2. a kind of method that improves copper strip surface hot dipped tinning or tin alloy production efficiency as claimed in claim 1, it is characterized in that this method technical scheme two be: in tin (alloy) plating bath, add 0.1～0.2 ‰ trace rare-earth, thereby improve the high temperature oxidation resistance of plating bath, guarantee that the photovoltaic welding belt product performance after the immersion plating temperature raises are not affected.
3. as claim 1 and 2 described a kind of methods that improve copper strip surface hot dipped tinning or tin alloy production efficiency, it is characterized in that this method technical scheme three be: increase the stroke that immersion plating moves to photovoltaic welding belt between the wire-drawing process in right amount or suitably improve air-cooled intensity, thereby the cooling performance after the assurance immersion plating is beneficial to the take-up and the packing of product.
4. a kind of method that improves copper strip surface hot dipped tinning or tin alloy production efficiency as claimed in claim 2, it is characterized in that the mentioned rare earth of this method is commercial mishmetal product, its consumption seldom, and is little to photovoltaic welding belt product performance and production cost influence.
5. a kind of method that improves copper strip surface hot dipped tinning or tin alloy production efficiency as claimed in claim 3, it is characterized in that immersion plating must not surpass 40% to the stroke increasing amount that photovoltaic welding belt between the wire-drawing process moves, the raising amount of air-cooled intensity must not surpass 15%.
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| CN2011101192931A CN102154606A (en) | 2011-05-10 | 2011-05-10 | Method for increasing production efficiency of hot-dip tin or tin alloy plating on surface of copper band |
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| CN2011101192931A CN102154606A (en) | 2011-05-10 | 2011-05-10 | Method for increasing production efficiency of hot-dip tin or tin alloy plating on surface of copper band |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105047249A (en) * | 2015-08-25 | 2015-11-11 | 无锡大力神钢构科技有限公司 | Lead-free environment-friendly tin-coating copper strip |
| CN105060027A (en) * | 2015-08-25 | 2015-11-18 | 无锡大力神钢构科技有限公司 | Tin-coated copper strip capable of being arranged on spool automatically |
| CN105586557A (en) * | 2016-03-25 | 2016-05-18 | 大连新锋钢管厂 | Hoop surface hot dip coating tin alloy process |
| CN106180253A (en) * | 2016-08-29 | 2016-12-07 | 江苏优轧机械有限公司 | A kind of convergent belt prolongs pressing production line |
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| JPH02228484A (en) * | 1989-02-28 | 1990-09-11 | Furukawa Electric Co Ltd:The | Tin or tin alloy coated material and production thereof |
| JPH0617217A (en) * | 1992-07-03 | 1994-01-25 | Furukawa Electric Co Ltd:The | Production of hot dipped wire |
| JP2001131663A (en) * | 1999-11-01 | 2001-05-15 | Senju Metal Ind Co Ltd | Tin alloy for lead plating |
| CN101412159A (en) * | 2008-11-24 | 2009-04-22 | 天津市宏远电子有限公司 | Lead-free solder alloy for hot-dipping tin-coated copper wire |
| CN101660114A (en) * | 2009-09-23 | 2010-03-03 | 江苏大学 | Magnesium or magnesium alloy surface hot-dip tinning or tin base alloy method |
-
2011
- 2011-05-10 CN CN2011101192931A patent/CN102154606A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02228484A (en) * | 1989-02-28 | 1990-09-11 | Furukawa Electric Co Ltd:The | Tin or tin alloy coated material and production thereof |
| JPH0617217A (en) * | 1992-07-03 | 1994-01-25 | Furukawa Electric Co Ltd:The | Production of hot dipped wire |
| JP2001131663A (en) * | 1999-11-01 | 2001-05-15 | Senju Metal Ind Co Ltd | Tin alloy for lead plating |
| CN101412159A (en) * | 2008-11-24 | 2009-04-22 | 天津市宏远电子有限公司 | Lead-free solder alloy for hot-dipping tin-coated copper wire |
| CN101660114A (en) * | 2009-09-23 | 2010-03-03 | 江苏大学 | Magnesium or magnesium alloy surface hot-dip tinning or tin base alloy method |
Non-Patent Citations (4)
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| 《材料保护》 19950731 宣天鹏 "铈对引线热浸镀锡的影响" 第28卷, 第7期 * |
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| 贺飞等: "热浸镀锡及晶花化工艺"", 《材料保护》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105047249A (en) * | 2015-08-25 | 2015-11-11 | 无锡大力神钢构科技有限公司 | Lead-free environment-friendly tin-coating copper strip |
| CN105060027A (en) * | 2015-08-25 | 2015-11-18 | 无锡大力神钢构科技有限公司 | Tin-coated copper strip capable of being arranged on spool automatically |
| CN105586557A (en) * | 2016-03-25 | 2016-05-18 | 大连新锋钢管厂 | Hoop surface hot dip coating tin alloy process |
| CN105586557B (en) * | 2016-03-25 | 2018-05-08 | 大连新锋钢管厂 | A kind of stirrup surface hot-dip tinning alloying technology |
| CN106180253A (en) * | 2016-08-29 | 2016-12-07 | 江苏优轧机械有限公司 | A kind of convergent belt prolongs pressing production line |
| CN106180253B (en) * | 2016-08-29 | 2017-12-05 | 江苏优轧机械有限公司 | A kind of convergent belt prolongs pressing production line |
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Application publication date: 20110817 |